From 99690460938d131443680b910780920f7b075b8f Mon Sep 17 00:00:00 2001
From: Christian Kandeler <christian.kandeler@qt.io>
Date: Thu, 5 Dec 2024 12:46:17 +0100
Subject: [PATCH] CppEditor: Fix pretty-printing of auto type

Task-number: QTCREATORBUG-31678
Change-Id: I2c1684c71315d50c98f451b280fbfd08b5d8d3e8
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
---
 src/libs/cplusplus/TypePrettyPrinter.cpp                    | 3 +++
 .../cppeditor/quickfixes/insertfunctiondefinition.cpp       | 6 +++---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/libs/cplusplus/TypePrettyPrinter.cpp b/src/libs/cplusplus/TypePrettyPrinter.cpp
index 0e7ba193427..5b617054fd4 100644
--- a/src/libs/cplusplus/TypePrettyPrinter.cpp
+++ b/src/libs/cplusplus/TypePrettyPrinter.cpp
@@ -116,6 +116,9 @@ void TypePrettyPrinter::visit(UndefinedType *)
             _text.prepend(QLatin1String("signed"));
         else if (_fullySpecifiedType.isUnsigned())
             _text.prepend(QLatin1String("unsigned"));
+    } else if (_fullySpecifiedType.isAuto()) {
+        prependSpaceUnlessBracket();
+        _text.prepend("auto");
     }
 
     prependCv(_fullySpecifiedType);
diff --git a/src/plugins/cppeditor/quickfixes/insertfunctiondefinition.cpp b/src/plugins/cppeditor/quickfixes/insertfunctiondefinition.cpp
index 0f9f8461380..f8ff21cd6ad 100644
--- a/src/plugins/cppeditor/quickfixes/insertfunctiondefinition.cpp
+++ b/src/plugins/cppeditor/quickfixes/insertfunctiondefinition.cpp
@@ -1883,17 +1883,17 @@ foo::foo2::MyType<int> foo::foo2::bar()
         QByteArray original =
             "class Foo\n"
             "{\n"
-            "    template<class U>\n"
+            "    template<class U, auto N>\n"
             "    void fun@c();\n"
             "};\n";
         QByteArray expected =
             "class Foo\n"
             "{\n"
-            "    template<class U>\n"
+            "    template<class U, auto N>\n"
             "    void fun@c();\n"
             "};\n"
             "\n"
-            "template<class U>\n"
+            "template<class U, auto N>\n"
             "inline void Foo::func()\n"
             "{\n"
             "\n"